Tool



July 24, 1928. 1,678,598

E. B. KING TOOL Filed July 16, 1927 5 Sheets-Sheet 1 I ll 8 I I is Edge/"5 K 0 BY j I ATTORNEY wuwm July 24, 1928. 1,678,598

E. B. KING TOOL Filed July 16, 1927 s Sheets-Sheet 2 FTK n nl\ INVENTOR July 24, 1928. 1,678,598

E. B. KING TOOL Filed July 16, 1927 ,3 Sheets-Sheet 3 [Fig fzyarzi Aim;

wlTN siwa-ymfi ATTORNEY Patented July 24,1928.

srares EDGAR B. KING, or nnnnmon, IDAHO.

TOOL.

Application filed July 16.

lily present invention has reference to a nail driving instrument in the nature of a hatchet or hammer and my primary object is the provision of an instrument for this purpose having a nail magazine therein, with means for singly directing the nails therefrom and to partially deliver such nails through an opening in the head of the instrument, to hold each nail thus delivered and subject the same to a slight blow which will in'ipinge the nail in the structure in which it is to be driven so that the nail will be thus held while the instrument is em ployed for driving the said nail fully home.

A. further object is the provision of an instrument of this type in which a magazine containing a comparatively great number oi nails, tacks or the like is arranged in the handle of the implement and singly directed therefrom, by the operation of trigger actuated mechanism into an opening or passage in the head or poll of the instrument, held therein by magnetic means, partially ejected therefrom by the action of a plunger, sustained when the pointed end is projected through the bore or passage in a manner to permit of a slight impactoliforce impinging the nail into the structure in which it is to be driven so that when thus held the instrument may be moved therefrom and employed in the usual manner for driving the nail fully home and further where the nails will be singly delivered from the instrument regardless of the angle at which the instrument is held.

The invention will be fully and comprehensively understood from a consideration of the following detailed description when read in connection with the accompanying drawings which form part of the application, with the understanding, however, that the improvementis capable of extended application and is not confined to the exact showing of the drawings nor to the precise construction described and, therefore, such changes and modifications may be made therefrom as do not affect the spirit of the invention norexceed the scope thereof as expressed in the appended claims.

In the drawings:

Figure l is a side elevation of a nail driving instrument in accordance with this invention.

Figure 2 is an end view thereof.

Figure 3 is an enlarged sectional View approximately on the line 33 of Figure 2,

1927. Serial No. 206,254.

showing a nail partly projected through the bore or passage in the head of the instrumeut to permit of the same being subjected to an impact of force by the instrument to initially impinge the nail into the structure into which it is to be driven.

.Figure 4: is a sectional view similar to Figure 3 but showing the manner in which the magnets hold the nail in the bore or passage in the head of the instrument prior to such nail being contacted by the plunger.

Figure 5 is a perspective view of the nail holder or magazine.

' Figure 6 is a similar view of the follower.

Figure 7 is a detail sectional view approximately on the line 'T'? of Figure 2.

Figure 8 is a detail bottom plan view of the nail receiving roller to illustrate the manner in which the same is turned by the actuation of the rack bar.

My improvement, while primarily devised for employment by lathers and carpet layers will be found very useful and eitective by other mechanics or persons in driving nails inasmuch as the nails are "automatically delivered, to a position to be acted upon by the head of the instrument.

In the showing of the drawings I have illustrated the improvement in connection with a lathefls hatchet, but obviously the invent on is not to be restricted to this particular type of instruments, and may be suecessfully employed upon varying other classes of such devices.

The head'ot the instrument is indicated. in the drawings by the numeral 1 and the handle by the numeral 2. The handle is hollow and. is designed to have received therein a nail holder or magazine 3, best illustrated by Figure 5 of the drawings. The top of the magazine 3 is open, and provides a rest for the heads otthe nails as shown byFigures 3 and 4t of the drawings. The magazine 3 has an opening 4 in one of its sides, but this opening is surrounded by a cross sectionally rounded. flange 5. One end of the magazine is open, but the tubular flange 5 has both of its ends open. Received in the magazine 3 there is a substantially rectangular plate 6 in the nature of a follower. This plate has an offset rounded lug 7 that is received in the tubular flange 5. Also received in the outer end of the tubular flange there is a tubular cap member 8, the said member being employed for holding the magazine in the handle and likewise providing a seat for one end of a coiled spring 9, the second end of the spring contacting with the lug 7 on the follower member to influence the said member to force the nails 10 through the open end of the magazine.

Having its ends provided with suitable preferably removable short shafts or trunnions 11 that are received in bearings openings in the opposite and what may be properly termed the upper and lower walls provided by the hollow handle at its juncture with the head 1 of the instrument, there is a roller 12. The roller is in the nature of a nail receiving member, the said roller being provided with equidistantly spaced longitudinally disposed grooves 13, and each of said grooves is of a size to snugly receive one of the nails 10 therein. The roller is arranged in a line with the inner wall provided by a bore or passage 1 that enters the head 1 from the poll or hammering surface thereof. Embedded in the wall pro vided by the groove or passage opposite the nail receiving roller 12 there are magnets 15, and these magnets attract and temporarily hold the nails in the said passage 14; when the said nails are delivered to said passage in a manner which will presently be apparent.

In the upper part of the passage 14 there is a plunger 16. This plunger is influenced by a spring 17. The plunger has on one of its sides a substantially J-shaped lug 18 that is received in a notch or opening 19 in the head 1. The opening 19 communicates with a comparatively long opening 20 in the head 1. The upper portion of the opening 20 is of a less width than the remainder of the said opening, there being an inclined wall 21 between the restricted and widened portion provided by the said opening 20. The wall 21 is normally contacted by the inclined or beveled corner 22 of a flat plate 23. The platehas an offset substantially V-shaped lug 24; that has its angle outer surface normally contacting with an angle wall 25 provided between the restricted opening 19 and the elongated opening 20. The lug 24: is disposed below the lug 18 of the plunger 16, the plate 23 being influenced to bring its lug in such position through the medium of a flat spring 26. The plate or dog carrying member 23 has pivoted to its lower end a rod 27. This rod passes through a restricted opening in the head and is received in an elongated opening 28 in the said head. The lower end of the rod 27 is flattened and widened, as at 29, and the portion 29 is provided with a slot 30 that receives therein a pin 31 on one side of a toothed wheel 32. The toothed wheel has its shaft journaled in suitable bearing openings in the slot in the head and the slotted and widened end or head 29 of the rod 27 has one of its ends received in an opening in the head of the instrument which opening communicates with the passage 1 L. Engaging with the teeth of the wheel 32 there is a rack bar 33. The rack bar is directed through a suitable bearing opening in the head and through a longitudinalopening in the handle. The outer end of the rod on which the rack 33 is formed is bent to provide the same with a finger piece or trigger 34 that is received through an elongated opening in the lower surface or bottom of the handle. For distinction, the rod on which the rack bar 33 is formed is indi cated by the numeral 35. This rod is provided with a second rack surface 36 that is engaged by a toothed wheel 37 journaled in a suitable opening or pocket in the handle. The toothed wheel 37 also engages a rack surface 38 on a bar or red 39 that is suitably guided in the instrument. The bar or rod 39 carriers a pivotally supported spring infiuenced dog 40 which is designed to engage with a'ratchet wheel 41 fixedly secured on the under face of the nail receiving roller 12. Pivoted in an opening in the rear wall of the poll portion of the head 1 there is a plate T2. The opening 43 in which. the plate 42 is pivoted communicates with the passage 11-. The plate has on its lower end a laterally extending finger 44 that is normally received in the passage 14. Secured to the under face of the rod 35 there is one end of a two-arm spring 45. Between the arms of the spring 45 there is passed a pin 46 carried by what I have termed the plate 42, and the inner or free end of said spring also contacts with a second pin l7 that is also carried by the plate 42. I

Entering from the outer face of the poll portion of the head 1 there is a round opening that communicates with the passage 14. The outer end of this opening is closed by a screw plug 48. This plug is contacted by a helical spring 49 whose free end engages with a spherical stop member 50. The end wall provided by the opening 51 in which the spring, plug and stop member are arranged is slightly roun'ded inwardly so that the spherical stop cannot be wholly projected into the passage ll. The operation may be briefly described as follows: The spring influenced followermember acting on the nails 10 forces the outer nails into the grooved receiving roller 12. The operator grasping the handle brings one of his fingers against the trigger 3% to impart a longitudinal movement to the rod This movement will cause the roller 12 to be turned so that the outermost nail will. be attracted by the magnets 15 and delivered from the roller into the passage 1 1-. The movement of the rod 4h) also causes the turning of the wheel 32 and the longitudinal movement of the rod 27 against the influence of its spring 52. This movement of the rod 2; A nail driving instrument including a causes the upward sliding movement of the dog carrying plate 23 so that the plunger 16 will be elevated. The angle corner 22 of the plate 23, riding on the angle wall 21 will bring the dog 24 out of engagement with the dog 18 and the plunger 16, permitting the. compression spring 17 to expand and to force the plunger into contact with the head of the nail sustained by the magnets 15 in the passage 14. The rearward longitudinal movement v o'f the rod 35 will, through the instrumentality of thetwo-arm spring 45 swing the'member 22 to bring its laterally extending or head portion 44 out of the passage l hso that the head of the nail will be delivered on to the spring influenced spherical stop member 50. \Vhen pressure upon the trigger 34 is relieved the spring 52 on the rod 29 will return the parts to their initial position, permitting the 'member 42 to be influenced by the spring 45 so that its lateral end or head 4:4: is arranged over the head of the nail 10. 'A slight impact of force delivered by the head 44 of the member 42 onto the nail will initially start the nail in the structure into which it is to be driven and will cause the head of the nail to. pass over the spherical member 50. The instrument may be moved so as to bring the instrument entirely away from the nail, so that the poll or head of the hammer may be employed for driving the nail entirely home. The magazine is designed to contain a comparatively large number of nails and such nails can be singly delivered from the instrument and driven home in a convenient and comparatively short period of time. When the nails in one magazine are exhausted another magazine containing nails may be readily inserted in the handle of the device. The improvement is of a comparatively simple construction, may be cheaply manufactured and commercialized and the advantages thereof will, it is thought, be fully understood and appreciated by those skilled in the art to which such invention relates.

Having described the invention, I claim 1. A nail driving instrument including a head, which has a nail passage therethrough and a handle which receives nails therein, means urging the nails from the handle into the passage, means for singly delivering nails into the passage, means temporarily holding the nails in the passage, means to engage with the nails for forcing the pointed ends thereof out of the passage, stop means to engage with the head of the nail when moved by the lastmentioned means, and a member movable over the head of the nail for contact therewith to prevent the nail from moving up the passage when the instrument is swung in nail driving direction and the nail comes in contact with the work.

head having a'nail passage in one end there'- of, and a hollow handle connected with the head and communicating with the passage thereof, a nail holding magazine in the hol low handle, spring means urging the nails therefrom in the direction of the passage in the head, means for singly delivering nails into the passage, and magnetic means for holding a nail in the passage, a spring influenced plunger operableto contact with the nail to partly project the same through the passage, stop means ror engaging the nail when so influenced, a member swingable over the head of the nail when engaged by the stop means, and designed to contact with the head of the nail to prevent the same from moving back up said passage when the instrument 1s swung in nail driving direction and the nail comes in contact with the work.

3. A nail driving instrument, includinga head having a nail passage entering from one end thereof, and a hollow handle having nails arranged therein, and the bore of the handle communicating with the passage, means for urging the nails into the passage, means for singly delivering nails into the passage, means temporarily holding the nail in the passa e, a spring influenced plunger, means operable to raise the plunger to compress the spring thereof and thereafter release the plunger to permit of the latter contacting the head of the nail to force the same through the passage, a spring influenced stop for preventing the nail moving entirely through the passage, a swingahle member,

means for moving the same out of the passage when the nail has been influenced by the plunger and spring means returning the member into the passage when the nail is engaged by the stop means and said swingable member being designed, when the instrument is swung to contact with the head of the nail, and prevent the same from moving back up the passage when the nail contacts with the work in the initial driving of the nail therein.

4:. A nail driving instrument including a head having a nail passage entering from one end thereof and having a hollow handle whose bore communicates with the passage, a removable nail holding magazine in the handle, a grooved revoluble element to receive the end nail from the magazine therein,

magnets in the passage opposite said element, a plunger in the passage, a spring infiuencing the plunger in one direction, a spring influenced vertically movable dog engaging with the plunger, a pivotally supported spring influenced member having a head at one end thereof, and which head is movable into the passage, a spring influenced spherical member in the head below said'last mentioned member and movable partly into the passage, and providing a nail stop, trigger operated means for turning the revoluble element to bring the nails singly into the passage to cause such nails to be attracted and held in the passage by the magnets, said means also operable to move the dog to urge the plunger and thereafter release said plunger to permit of the latter contacting with the head of the nail to torce the same against the stop, and the pointed end thereof through the passage, and said means likewise operative to swing the spring influenced headed member to permit of the nail traveling on to the passage and thereafter to release said headed member to bring the same over the head of the nail.

A nail driving instrument including a head, a nail passage entering from one end thereof, and a hollow handle whose bore communicates with the passage, a nail magazine inserted through the rear end of the handle, spring means urging the nails in the magazine toward the passage, a grooved roller receiving the nails from the magazine for singly delivering such nails into the passage,

I magnets in the passage to attract and to hold a nail therein, a spring influenced plunger in the passage, a stop element thereon, a slidably mounted springinfluenced dog in the head having an offset portion to engage that of the plunger, a spring influenced stem for the dog having a slotted head, a toothed wheel. having a pin received in the slotted head, a trigger operated rack bar engaging the wheel, a second toothed whee]. engaged by the rack and a rack for the last mentioned wheel, a toothed Wheel on the roller,

a pivoted dog on the last mentioned rack for engaging said Wheel, a spring influenced spherical stop member in the head and normally partly projected through the passage, a pivot-ally supported spring influenced memher having a lower head portion and whose spring is connected with the first mentioned rack, and the head of the said rack being disposed above the spherical stop, all as and for the purpose set forth.

In testimony whereof I afiix my signature.

' EDGAR B. KING. 

